Senior Offensive Security Engineers in London

SENIOR OFFENSIVE SECURITY ENGINEERS – LONDON (REMOTE)

£60k-£80k | Fully Remote (UK-based)

Role

Conduct comprehensive penetration testing across web applications, infrastructure, APIs, and cloud environments.

Perform manual security assessments and exploitation.

Deliver client-facing penetration testing engagements.

Write detailed technical reports for various stakeholders.

Collaborate with internal teams on security improvements.

Essential Requirements

• UK Bachelor\’s degree in Computer Science, Cybersecurity or related subject (or UK Master\’s as alternative).
• 3-5 years commercial penetration testing experience.
• Strong understanding of offensive security techniques, OWASP Top 10, MITRE ATT&CK.
• Deep knowledge of operating systems, networking protocols, and system architecture.
• Experience with penetration testing tools (Burp Suite, Metasploit, custom scripts).
• Excellent communication and report writing skills.

Desirable

• OSCP, CREST certifications.
• Bug bounty participation.
• Red team experience.
• Cloud security testing (AWS, Azure, GCP).
• Active involvement in security community (CTFs, conferences, research).

Company Culture

• Technical excellence and deep fundamentals valued over credentials.
• Graduate-focused environment.
• Continuous learning and passion for technology expected.
• Looking for candidates who demonstrate genuine interest in offensive security.

Location

Fully remote within UK, optional hybrid working from London office.

#J-18808-Ljbffr